A former Oakland Raiders player and a current Alameda County supervisor got into a dustup the other day over pee-wee football - landing Supervisor Scott Haggertyin a neck brace and ex-NFL tight end Jeremy Brighamunder investigation by Pleasanton police.

All of it was caused, we're told, by Brigham's accusations that Haggerty - whom he had just fired as the assistant coach of his Pleasanton squad of 10- and 11-year-old boys - had leaked plays to an opposing team.

Police Sgt. Jim Knox confirmed that his department is investigating the incident. He declined to discuss details, but said a report is due in the next week or two.

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Brigham played four seasons for the Raiders, through 2001. Haggerty has been a county supervisor since 1996. Fate threw the odd couple together this fall on the coaching staff of the Cowboys in the Pleasanton Junior Football League.

Haggerty said his advice to head coach Brigham wasn't always welcome, and that Brigham told him to "shut up and sit down" after he complained about the team's exercise regimen and asked to take over.

A few days later, after Haggerty couldn't make a meeting with Brigham to go over game film, Brigham sent him a text message that he was fired and warned him not to show up at practices, the supervisor says.

Haggerty said he took the firing in stride, but still showed up that Saturday to watch from the stands as the Cowboys walloped their opponent, 38-0.

At a coaches meeting the next day, according to Haggerty, the losing coach walked up to Brigham and joked, "Haggerty gave me all your plays."

That Monday, when Haggerty showed up at the Foothill High School football field to pick up his son from practice, Brigham confronted him, "screaming that I gave the plays away," Haggerty told us.

The next thing he knew, Haggerty said, Brigham had knocked his BlackBerry from his hand and was pulling him over a 4-foot fence as he punched him on the back of the head.

Haggerty insists he never acted aggressively himself and left as fast as he could, then called 911 before going to the hospital. The supervisor said he was met there by Pleasanton police officers, who took a report.

Haggerty did not attend the Cowboys' next game - when his own son suffered a serious neck injury and had to be airlifted to a hospital.

Now both he and his son - who suffered torn muscles and a mild concussion that ended his season - are wearing neck braces.

Haggerty tells us that Brigham was suspended for one game for the alleged scuffle. Repeated attempts to reach Brigham at numbers listed in his name were unsuccessful.

Mike Shevelson, vice president of the Pleasanton Junior Football League, would say only that "it's an internal thing for the league" and "you're doing a disservice to report it."

This isn't the first time that an ex-Raider coaching youth football has made news. You might recall that Bill Romanowski, who played for both the Raiders and the 49ers, caused a flap in 2006 when, as the coach of a Piedmont middle school flag football team, he charged onto the field during a game in Lafayette to confront an opposing team member who he thought was playing dirty.

Tow tangle: Questions of law and liability aside, one of the stranger aspects of San Francisco's new "no-tow" policy for unlicensed drivers was Mayor Gavin Newsom's deer-in-the-headlights reaction to his own change.

His press office didn't know it was coming, and neither did the staffers on his now-defunct gubernatorial campaign.

Newsom himself appeared to be caught flat-footed when we broke the news last Monday. He alternately explained that the new rule was:

1. A response to "what was perceived as racial profiling" of Latino drivers.

2. A recognition of the unfair economic hardship of taking away someone's car.

3. An insistence that it wasn't that big a deal in any case.

What we do know is that for more than a year, advocates in the sanctuary movement had been pushing for the cops to lighten up on illegal drivers.

The advocates wanted an end not only to towing the cars of unlicensed drivers, but also a halt to traffic stings that they said singled out Latinos.

In the interests of political peace, Newsom had sent the idea to then-Police Chief Heather Fongfor study. We're told, however, that the idea was to do just that - study the issue - not necessarily to do anything.

But no one tipped new Police Chief George Gascón to the play. He picked up what appeared to be a policy ready to go and went with it, thinking it had been cleared by Newsom.

Whether the mayor was actually paying attention to all this - especially while his run for governor was unraveling - is another story.